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-rw-r--r--lib/Transforms/Scalar/SCCP.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index 43eb26fd30..79d90e6532 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -25,7 +25,7 @@
#include "llvm/iOther.h"
#include "llvm/iTerminators.h"
#include "llvm/Tools/STLExtras.h"
-//#include "llvm/Assembly/Writer.h"
+#include "llvm/Assembly/Writer.h"
#include <algorithm>
#include <map>
#include <set>
@@ -430,7 +430,7 @@ void SCCP::UpdateInstruction(Instruction *I) {
//===-------------------------------------------------------------------===//
// Handle Unary instructions...
//
- if (I->isUnaryOp()) {
+ if (I->isUnaryOp() || I->getOpcode() == Instruction::Cast) {
Value *V = I->getOperand(0);
InstVal &VState = getValueState(V);
if (VState.isOverdefined()) { // Inherit overdefinedness of operand
@@ -456,7 +456,8 @@ void SCCP::UpdateInstruction(Instruction *I) {
//===-----------------------------------------------------------------===//
// Handle Binary instructions...
//
- if (I->isBinaryOp()) {
+ if (I->isBinaryOp() || I->getOpcode() == Instruction::Shl ||
+ I->getOpcode() == Instruction::Shr) {
Value *V1 = I->getOperand(0);
Value *V2 = I->getOperand(1);